SINGAPORE (Standard&Poor's) June 1, 2005--Standard&Poor's Ratings Services today raised its corporate credit ratings on Singapore Power Ltd. (SingPower) and its wholly owned subsidiary, SP PowerAssets Ltd. (SPPA), to 'AA' from 'AA-'. The outlook is stable. At the same time, the ratings were removed from CreditWatch, where they were placed with positive implication on March 9, 2005. The issue ratings on the medium-term notes of SingPower and SPPA were also raised to 'AA' from 'AA-'. "The rating upgrade follows the completion of the group's sale of its merchant energy business in Australia, and also reflects the group's improved business position as a result of the sale," said Standard&Poor's credit analyst Greg Pau. SingPower sold its